Teradyne, Inc.

Peter L Hansen

Pavel Gilenberg

Michael Thomas Fluet

An example test system includes a bus interface to connect to a bus of a computer system; and test instruments to perform one or more test operations on a UUT, where the test instruments connect to the bus interface to enable communication between the computer system and the test instruments via the bus interface. At least one test instrument includes: ports to which the UUT is connectable, with each of the ports interfacing to a corresponding peripheral bus supported by the at least one test instrument; circuits to connect the bus interface to the peripheral buses, with each circuit being configured to convert between a bus interface protocol run on the bus interface and a peripheral bus protocol run on a peripheral bus; and a switch to identify a target circuit of the circuits, with the switch to direct communications between the computer system and the target circuit.

Bus interface system for interfacing to different buses

A flexible test environment for automatic test equipment, whereby sequences of steps for developing and executing test programs are specified using hierarchical trees of nodes. The nodes in one tree include end leaves that correspond with the test program development steps, and the nodes in another tree include end leaves that correspond with the test program execution steps. Further, the end leaves in both trees have a plurality of associated properties, which are used for specifying test program flow and for indicating methods to be called when the steps are executed. The test environment can be easily adapted to a distributed tester architecture.

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Peabody, MA, United States of America

Peter L Hansen